Friday

July 25, 2014

July 25, 2014

Total # Posts: 16

**Mathematics**

2x+6 < 5(x-3) distribute 5 into x-3 2x+6 < 5x-15 move all x to one side 6 < 5x-15-2x simplify 6 < 3x-15 move 15 to other side 6+15 < 3x simplify 21 < 3x get x alone by dividing 3 on both sides 21/3 < 3x/3 simplify 7 < x and thats how you solve it.

**math**

well you can always just plug the answers into both equations and solve them. Answer: A

**Physics**

A hydraulic ram is a device that uses the pressure created by a large amount of water falling a small distance to raise a portion of that water to a much greater height. It is suitable in valleys where springs feed a stream below, where farms needing irrigation are at the top ...

**Is the nucleus composed of protons and neutrons?**

protons and neutrons. The electrons are on the outside keeping the protons inside.

**math**

Well first you add up the currently known grades: 84, 65, and 76. (known grades) Next multiply 80 by 4 to get the total amount for his test scores. (wanted average) Finally subtract the total for his known grades from his wanted average.

**Physics**

okay that makes sense thanks.

**Physics**

12th grade physics ap question. A baseball with a mass of 120 g is hit 21.8 m into the air. The ball is caught by the third baseman 2.5 m above the ground. What potential energy did the ball develop at its highest point? How much potential energy did it still have when it was ...

**Physics**

Well you know the force and mass. So use this formula: F=ma. F=250N m=20kg Just rearrange it and you will be able to get the maximum acceleration the sack can withstand before breaking.

**art**

yellow, blue, and red.

**math**

Well lets break this up first. Clue 1: is i am a 3 digit number less than 200, only number possible there is 1. Clue 2: is the tens is 2x ones' place. so look at clue 3. clue 3: The ones place is 2. So then the tens is 2 times 2 which is 4. So the number would be 142.

**physics**

For A you need to find the resultant. So since you know it moves 2.4 m/s north and 2.3 m/s east you can use the Pythagorean theorem to find it. For B i am not as sure about but it most likely is asking you to find the angle (based from east) where the boat is moving. So use in...

**Science**

HELP! I have a friction question that says: What causes rocks to become smooth and founded. I know it's friction, but why?

**math**

A restaurant offers an "appetizer-plate special" consisting of six selections from its list of appetizers. If there are more than 8000 different possible appetizer-plate specials, what is the least possible number of appetizers?

**math**

how do you do intergers

**math**

susy has 22 coins in her pocket totaling $1.80. what combination of coins could she have *riminder the numbers of coins has to equal 22 but the amount has to equal to 1.80

**math**

how do you multiply intergers EX..... -4 x 5 = -20 4 x 5 = 20 right? Well the negative 4 makes your answer into a negative number also. Do you get it now?

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